.tab-group-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 12px 24px;
    border-bottom: 1px solid #e8e8e8;
  }
  
  .tabs-container {
    display: flex;
    gap: 24px;
  }
  
  .tab-item {
    padding: 8px 0;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 14px;
    color: #666;
    position: relative;
    transition: color 0.3s;
  }
  
  .tab-item.active {
    color: #1890ff;
    font-weight: 500;
  }
  
  .tab-item.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: #1890ff;
  }
  
  .invoice-button {
    background-color: #1890ff;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    transition: opacity 0.3s;
  }
  
  .invoice-button:hover {
    opacity: 0.9;
  }